ISO IEC 25051:2014 pdf download – Software engineering — Systems and software Quality Requirements and Evaluation (SQuaRE) — Requirements for quality of Ready to Use Software Product (RUSP) and instructions for testing. 4?Terms,?definitions?and?abbreviated?terms 4.1?Terms?and?definitions For the purposes of this document, the following terms and definitions apply: 4.1.1 acquirer stakeholder that acquires or procures a product or service from a supplier Note 1 to entry: The acquirer could be one of the following: buyer, customer, owner, purchaser. [SOURCE: ISO/IEC 12207:2008] 4.1.2 anomaly any condition that deviates from expectations based on requirements specifications, design documents, standards, etc. or from someone’s perceptions or...